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Texas Instruments ADC12SJ1600AAVT
- Part No.:
- ADC12SJ1600AAVT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 144-FBGA, FCBGA
- Datasheet:
-
ADC12SJ1600AAVT.pdf
- Description:
- IC ANALOG TO DIGITAL CONVERTER
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADC12SJ1600 from Texas Instruments is a single-channel, 12-bit, 1.6GSPS analog-to-digital converter with JESD204C interface, internal PLL/VCO (7.2–8.2 GHz), 6 GHz full-power input bandwidth, and 80 mVPP-DIFF full-scale input voltage. It enables direct RF sampling in L-band/S-band systems such as satellite communications and electronic warfare receivers.
For engineers reviewing the ADC12SJ1600 datasheet, ADC12SJ1600 pinout, ADC12SJ1600 application, or ADC12SJ1600 equivalent, key selection considerations include JESD204C lane count (1–4 lanes), deterministic latency via Subclass-1, timestamp I/O for pulsed systems, and internal clock generation eliminating external VCO requirements.
Technical Context
The ADC12SJ1600 implements a non-interleaved 12-bit SAR architecture with internal dither to suppress high-order harmonics. Its 6 GHz input bandwidth supports direct RF sampling without IF downconversion, and its JESD204C interface operates at up to 17.16 Gbps with 64B/66B or 8B/10B encoding.
It integrates a fully programmable internal PLL with integrated VCO (7.2–8.2 GHz) for sampling clock synthesis, four configurable clock outputs (including DIVREF_C/D), SYSREF windowing for multi-device synchronization, and timestamp input/output for time-critical pulsed applications like LiDAR and OCT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - Enables high dynamic range digitization of wideband RF signals without quantization noise limiting SNR. |
| Max Sampling Rate | 1.6 GSPS - Supports Nyquist sampling of signals up to 800 MHz or undersampling of L/S-band RF carriers (1–3 GHz). |
| Full-Power Input BW | 6 GHz - Allows direct RF sampling of L-band (1–2 GHz) and S-band (2–4 GHz) without analog pre-filtering or downconversion. |
| JESD204C Lanes | 1–4 lanes - Reduces PCB routing complexity vs parallel interfaces; supports deterministic latency (Subclass-1) for coherent multi-ADC systems. |
| SNR @ 100 MHz | 57.4 dBFS - Confirms usable ENOB of 9.1 bits at mid-band, critical for high-fidelity signal capture in test equipment and radar. |
| Internal PLL Range | 7.2–8.2 GHz - Generates precise sampling clocks from low-jitter reference inputs, eliminating need for external ultra-high-frequency VCOs. |
| Power @ 1 GSPS | 1000 mW - Single-channel power envelope enables thermal management in compact, high-density digitizer modules. |
| Input Voltage | 80 mVPP-DIFF - Matches typical high-speed amplifier output swing, simplifying front-end driver design and impedance matching. |
Pinout & Package
ADC12SJ1600 is housed in a 144-ball FCBGA package (10 mm × 10 mm) with 0.8 mm ball pitch. The package supports high-speed signal integrity via dedicated analog/digital/PLL ground planes (AGND, DGND, PGND) and optimized power delivery (VA11, VA19, VD11, VPLL19).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA+, INA− | Differential analog input (Channel A) | Accepts 80 mVPP-DIFF full-scale signal; internally terminated to VA11 (1.1 V) with 50 Ω; self-biased common-mode. |
| D0+ / D0− to D3+ / D3− | JESD204C serialized data outputs (Lanes 0–3) | AC-coupled differential outputs supporting up to 17.16 Gbps; require 100 Ω differential termination at FPGA receiver. |
| SYSREF+, SYSREF− | Deterministic latency synchronization input | Differential input with internal 100 Ω termination; enables Subclass-1 alignment across multiple ADCs or FPGA transceivers. |
| TMSTP+, TMSTP− | Timestamp trigger I/O | Allows precise sample-level time tagging for pulsed systems (e.g., LiDAR pulse echo timing); requires TMSTP_RECV_EN = 1. |
| CLK+, CLK− / SE_CLK | Sampling clock input (differential or single-ended) | Supports AC-coupled LVPECL/LVDS; when PLL_EN = 1, CLK± or SE_CLK serves as reference for internal 7.2–8.2 GHz VCO. |
| PLLREFO+, PLLREFO− | LVDS PLL reference clock output | Repeats selected reference clock (CLK± or SE_CLK); available at power-up if PLL_EN = 1 and PD = 0; used to clock adjacent devices. |
| ORC, ORD | Configurable outputs (overrange or clock) | When enabled via CLKCFG[1:0], provide divide-by-1/2/4 copies of PLLREFO; otherwise indicate fast over-range detection for Channel C/D (not applicable to ADC12SJ1600). |
| SCLK, SCS, SDI, SDO | 4-wire SPI programming interface | 1.1–1.9 V CMOS-compatible; allows register configuration of sampling mode, JESD204C parameters, calibration, and clock settings. |
Key Features
| Feature | Design Value |
|---|---|
| JESD204C Subclass-1 support | Enables deterministic latency and multi-device synchronization without external delay calibration hardware. |
| Internal PLL with integrated VCO (7.2–8.2 GHz) | Eliminates need for external ultra-high-frequency clock synthesis, reducing BOM cost and board area in compact RF systems. |
| Four programmable clock outputs | Provides reference clocks for FPGA logic, SerDes transceivers, and adjacent ADCs-reducing external clock distribution components. |
| Timestamp input/output | Supports precise time-of-arrival measurement in pulsed applications (e.g., LiDAR, OCT), enabling sub-nanosecond sample alignment. |
| 6 GHz full-power input bandwidth | Permits direct sampling of L/S-band RF without analog downconversion stages, simplifying signal chain and preserving phase coherence. |
| Non-interleaved architecture with internal dither | Ensures spurious-free performance and stable SFDR >64 dBc at 100 MHz, critical for spectral purity in communications test equipment. |
Applications
| LiDAR Systems | Multi-Channel Oscilloscopes |
|---|---|
Use Scenario: Time-of-flight distance measurement using short laser pulses and high-speed return signal capture. IC Role / Device Role / Timing Role: Single-channel ADC digitizing reflected optical pulse waveforms with nanosecond-level timestamp alignment. Use Value: 1.6 GSPS sampling and 6 GHz bandwidth resolve sub-centimeter spatial resolution; timestamp I/O enables precise pulse-to-sample correlation. | Use Scenario: High-bandwidth waveform acquisition across multiple channels with synchronized triggering and deep memory. IC Role / Device Role / Timing Role: Standalone digitizer channel providing 12-bit fidelity and deterministic latency for real-time FFT and analysis. Use Value: JESD204C Subclass-1 ensures channel-to-channel skew <100 ps; internal PLL eliminates external clock jitter sources affecting measurement accuracy. |
| Satellite Communications (SATCOM) | Electronic Warfare Receivers |
Use Scenario: Direct sampling of L-band uplink/downlink signals (1.2–2.5 GHz) in phased-array ground terminals. IC Role / Device Role / Timing Role: RF-sampling ADC capturing wide instantaneous bandwidth for digital beamforming and modulation analysis. Use Value: 6 GHz input bandwidth enables zero-IF sampling of full SATCOM bands; 12-bit resolution preserves EVM for QAM-256 demodulation. | Use Scenario: Wideband signal intelligence (SIGINT) collection across S-band with real-time frequency hopping detection. IC Role / Device Role / Timing Role: Front-end digitizer in channelized receiver architecture requiring high SFDR and low noise floor. Use Value: 64 dBc SFDR at 100 MHz and –147 dBFS noise floor enable detection of weak co-channel emitters amid strong interferers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC12DJ1600 | Dual-channel variant with identical 12-bit/1.6GSPS specs, 6 GHz BW, and JESD204C; shares same pinout and package. | Used where two independent RF channels are required (e.g., I/Q sampling or dual-polarization radar). | Select ADC12DJ1600 when system requires simultaneous dual-channel capture without interleaving artifacts. |
| ADC12QJ1600 | Quad-channel variant with identical per-channel specs and pin-compatible 144-ball FCBGA package. | Deployed in multi-channel coherent systems (e.g., phased arrays, MIMO test benches) requiring ≥4 synchronized channels. | Choose ADC12QJ1600 for scalable channel count while maintaining identical per-channel performance and layout reuse. |
Compared with ADC12DJ1600 and ADC12QJ1600, the ADC12SJ1600 delivers identical per-channel performance in a single-channel configuration-optimizing power (1000 mW @ 1 GSPS), PCB area, and cost for applications needing only one high-fidelity digitizer path.
Availability
ADC12SJ1600 is available at Aetrix Electronics and suitable for satellite communications (SATCOM), electronic warfare (SIGINT/ELINT), and optical coherent tomography (OCT) requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADC12SJ1600 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-performance data converters for industrial, automotive, and communications markets.
The ADC12xJ1600 product line was designed to deliver scalable, pin-compatible high-speed ADCs (12-bit, 1.6 GSPS) with integrated JESD204C and clocking for RF-sampling test, defense, and communications systems.
FAQ
What is the maximum JESD204C lane count supported by ADC12SJ1600?
The ADC12SJ1600 supports 1 to 4 JESD204C SerDes lanes, configurable to match FPGA transceiver resources and system throughput requirements. Lane count is set via SPI register configuration and affects link layer parameters including octets per frame and frames per multiframe. This flexibility allows optimization between PCB routing density and serialization overhead in single-channel digitizer designs using ADC12SJ1600.
Does ADC12SJ1600 require an external clock source when using the internal PLL?
Yes, ADC12SJ1600 requires an external reference clock applied to CLK± (differential) or SE_CLK (single-ended) even when using the internal PLL. The PLL synthesizes the 1.6 GSPS sampling clock from this reference; it does not operate standalone. Reference frequency must be within specified range (e.g., 10–100 MHz for integer-N mode), and jitter performance directly impacts ADC SNR. The ADC12SJ1600 datasheet specifies recommended operating conditions for reference clock amplitude, slew rate, and phase noise.
Can ADC12SJ1600 perform DC-coupled analog input acquisition?
Yes, ADC12SJ1600 supports DC-coupled analog input acquisition on INA+/INA−, but requires a DC-coupled fully differential amplifier with output common-mode voltage set precisely to VA11 (1.1 V nominal). The ADC's input is self-biased to VA11 and lacks internal DC offset correction circuitry. AC coupling is recommended for most RF applications; DC coupling is viable only when the driving amplifier's common-mode and gain matching meet tight tolerances specified in the ADC12SJ1600 Recommended Operating Conditions table.
How does the timestamp feature function in ADC12SJ1600?
The ADC12SJ1600 timestamp feature uses TMSTP+ and TMSTP− differential inputs to mark exact sample instants. When TIME_STAMP_EN = 1 and TMSTP_RECV_EN = 1, a rising edge on the timestamp input aligns to the nearest sampling clock edge and embeds a 48-bit timestamp into the JESD204C data stream. This enables sub-nanosecond time-of-arrival measurement in pulsed systems like LiDAR and OCT-critical for ADC12SJ1600 deployments requiring precise temporal correlation between stimulus and response.
Is ADC12SJ1600 pin-compatible with other members of the ADC12xJ1600 family?
Yes, ADC12SJ1600 is pin-compatible with ADC12DJ1600 (dual-channel) and ADC12QJ1600 (quad-channel) in the same 144-ball FCBGA (AAV) package. All share identical ball map, power sequencing, and interface signaling. Unused pins (e.g., INB±, INC±, IND±, ORB, ORC, ORD) are designated as DNC (Do Not Connect) on ADC12SJ1600 and must remain unconnected. This enables hardware reuse across channel-count variants without PCB redesign when using ADC12SJ1600.
ADC12SJ1600AAVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 144-FBGA, FCBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1.6G
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- JESD204B/C
- Configuration:
- ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined, SAR
- Reference Type:
- -
- Voltage - Supply, Analog:
- 1.05V ~ 1.15V, 1.8V ~ 2V
- Voltage - Supply, Digital:
- 1.05V ~ 1.15V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 144-FCBGA (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC12SJ1600AAVT FAQ
1.How can I place an order for ADC12SJ1600AAVT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC12SJ1600AAVT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADC12SJ1600AAVT reliable?
The price and inventory of ADC12SJ1600AAVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC12SJ1600AAVT is usually 5 days.
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Once your ADC12SJ1600AAVT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADC12SJ1600AAVT?
For technical support, including ADC12SJ1600AAVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC12SJ1600AAVT requirements.
6.How does Aetrix verify that ADC12SJ1600AAVT is sourced from the original manufacturer or authorized distributors?
All ADC12SJ1600AAVT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADC12SJ1600AAVT meets industry standards.
7.What is the process for return or replacement of ADC12SJ1600AAVT?
All ADC12SJ1600AAVT units undergo pre-shipment inspection (PSI). If there is an issue with ADC12SJ1600AAVT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADC12SJ1600AAVT part is unused and in its original packaging.
Return procedure for ADC12SJ1600AAVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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